"Check your credit score and grab your walking shoes, people! Black Friday is coming."

"Governments around the world will this year raise around $22 billion from schemes putting a price on carbon dioxide (CO2) emissions such as taxes or emissions trading systems, a report on Wednesday showed."

"US regulators clear a viral melanoma therapy, paving the way for a promising field with a chequered past."

"Six of Africa’s 11 vulture species – the continent’s largest and most recognisable birds of prey – are now at a higher risk of extinction, according to the latest assessment of birds carried out by BirdLife International for the IUCN Red List of Threatened Species."

"A dozen Buddhist authorities, in what they're calling an unprecedented effort, appeal to world leaders to take strong climate change action at next month's Paris conference."

"Rocky Mountain spotted fever is a nasty disease."

"The island nation of Kiribati is one of the world's most vulnerable to rising sea levels. But residents may have to leave well before the ocean claims their homes."

"A controversial plan to promote U.S. hardwood lumber is now sawdust, at least for the time being."

"Tar sands mining companies have continued to withdraw water from the Athabasca River in northeastern Alberta despite low flows that have made navigation difficult for river users downstream and left Fort Chipewyan's harbor dry."